Adults' L.L.Bean Ultralight Sleeping Bag, 35°

Stay warm on cool nights with this ultralight 35° bag, which packs down super-small. It now features Primaloft Gold with Cross-Core, a mid-loft ultralight insulation that retains much of its insulating ability even when compressed.

The Technology

This is the only sleeping bag in the world to feature Cross-Core, an industry-changing innovation that fuses NASA-developed aerogel technology with existing PrimaLoft Gold insulation, for more warmth without adding an ounce of weight. Sean McCoy, Managing Editor of GearJunkie.com had this to say: “Why is this a big deal? Well, aerogel is the lightest insulator on Earth.” It allows us to build a roomy, comfortable rectangular bag that's more than light enough to take backpacking.

This exclusive combination of NASA-developed aerogel technology and performance insulation is 15% warmer without any extra weight.

WATCH THE VIDEOEXPLORE CROSS CORE

• Wash and dry in large commercial machine.

Construction

• Shell and lining made from soft, durable 20-denier ripstop nylon.
• 100-gram Primaloft Gold insulation with Cross-Core technology.
• This insulation has more warmth and compressibility than traditional synthetics without the bulk.

Additional Features

• Relaxed, roomy shape allows plenty of shoulder room.
• Small inside pocket on shoulder for headlamp, glasses or other essentials.
• Half-length zipper allows convenient venting.
• Trapezoidal footbox provides extra room for feet or extra layers.
• Compression stuff sack and oversized cotton storage bag included.
• Unless otherwise specified, regular sleeping bags come with right-handed zippers.
• Long bags come with left-handed zippers.
• Temperature rating tested in to EN 13537 standards.
• Imported.